GUI - Populating listbox with File List

I have inseted a Click and List Box in GUI.

Procedurally, I would like to click the Click Box to open the computer's File Directory, select a file, and have its contents populate the Listbox.

Reading the documentation, I've tried implementing lbox2 and lbox1 but haven't been successful.

How can I achieve this?

[Adam]

doc uigetdir

will let you search for a directory

doc dir

will let you manipulate the information content of a directory, such as the listing of files and filter out stuff you don't want (e.g. '.' and '..' or all subfolders etc).

If you want to read the contents of a file then there are various ways to do that depending what type of file it is, but once you have it all in a string or cell array of strings/chars you can just assign it to the 'String' property of your listbox.